3 Key Problems Address ShortageExtrapolating the number of DNS registered addresses shows total exhaustion in But the practical maximum is about 240 M addresses, in

4 Key Problems Address ShortagePeer to Peer applications requireAddressability of each end pointUnconstrained inbound and outbound trafficDirect communication between end points using multiple concurrent protocolsNATs are a band-aid to address shortageBlock inbound traffic on listening portsConstrain traffic to “understood” protocolsCreate huge barrier to deployment of P2P applications

5 Key Problems Lack of MobilityExisting applications and networking protocols do not work with changing IP addressesApplications do not “reconnect” when a new IP address appearsTCP drops session when IP address changesIPSEC hashes across IP addresses, changing address breaks the Security AssociationMobile IPv4 solution is not deployableForeign agent reliance not realisticNATs and Mobile IPv4? Just say NO

9 IPv6 in the enterprise ? Why? How? When?It is not a fad – there really are new scenariosHow?It does not require extraordinary investments if you use the right tools!Keeping it secure!When?As soon as the tools are ready,That is, now!

18 In Summary … We Build TogetherMicrosoft is moving quickly to enable Windows platforms for IPv6Up to date information on:Send us feedback and requirementsWe need your help to move the world to a simple ubiquitous network based on IPv6

19 Call to Action EnterpriseStart deployment now!Network Providers: Build it and they will comeDo not settle for NATs for new designsDemand IPv6 support on all equipmentOffer native IPv6 servicesDevice Vendors: Design for the simpler, ubiquitous IPv6 internetApplication Writers: Don’t wait on the aboveUse Windows XP and Windows .NET Server NOW!